TWI459836B - Handling emergency bearer service - Google Patents

Description

Method of processing an emergency bearer service

The present invention is directed to a method for a wireless communication system, and more particularly to a method for processing an emergency bearer service in an active base station of a wireless communication system.

Machine-Type communication (MTC) is one of the categories of data communication that contains one or more units without interaction with the user. That is, the basic concept of mechanical type communication can utilize one of the existing network terminals for a machine type communication device, such as GSM/EDGE wireless access network (hereinafter referred to as GERAN), communication mobile communication system (Universal Mobile Telecommunications System (hereinafter referred to as UMTS), Long Term Evolution (LTE) or similar communication system, rather than users using mobile base stations. A machine device for machine type communication can be referred to as a machine type communication device. There are currently a variety of different types of machine type communication devices, such as: vending machines, water meters, and the like. Machine type communication devices are widely used in various fields. The machine type communication device has different characteristics from the general mobile base station, so the optimized service of the machine type communication is different from the communication of the general person to the person. Compared with current mobile network communication services, machine type communication can be characterized by different market demands, data communication, low cost, wide service range and low data transmission.

At the same time, the number of machine type communication devices can be much larger than that of conventional communication devices, and the possibility of simultaneous operation of a large number of machine type communication devices is realized due to the characteristics of machine-to-machine communication. Machine to Machine (M2M) communication, or Machine Type Communication (MTC), can be used in many different fields. In terms of security, machine-to-machine communication can be used in surveillance systems, telephone line back-end devices, physical access control, and in-vehicle security. On the tracking system, machine-to-machine communication can be used in fleet management, sequential management, driving mileage payment applications, asset tracking, navigation, traffic information applications, road towing, traffic best words, and automated driving. On payment systems, machine-to-machine communication is available at point of sale, vending machines, consumer service applications, and gaming consoles. On the health care system, machine-to-machine communication can be used to remotely remotely sign, assist with disabilities or the elderly or access remote medical points on the web and remote treatment. In remote maintenance and control, machine-to-machine communication can be used in programmable logic controllers (PLCs), sensors, lighting, pumps, control gates, elevator controls, and vending machine controls. In terms of measurement, machine-to-machine communication can be used in electricity meters, gas, water, heat, and industrial meters. In addition, machine-to-machine communication based on machine type communication can be used for customer service in different areas.

Machine-to-machine communication utilizes the deployed wireless network based on the 3rd Generation Partnership Project (3GPP) technology, such as Global System for Mobile Communications (GSM), Universal Mobile Telecommunications System , Long Term Evolution System, Advanced Long Term Evolution (LTE-Advanced) or other 3GPP wireless technologies, such as Worldwide Interoperability for Microwave Access (WIMAX). Machine-to-machine communication uses the network to deliver services based on the above techniques to save costs.

When the network settings support machine type communication, the machine type communication function is provided by the visit and home network. Some machine type communication functions are controlled by a subscriber profile. Other machine type communication functions can be transmitted to one of the indicators on the network side according to the client. The machine type communication function can be executed by the user set to the machine type communication.

According to Section 5.3.13.3 of the 3GPP document TS 23.060, a mobile base station that is set to a low priority device or a machine type communication device transmits a machine type communication and/or a low priority indicator to a network node ( Such as: service GPRS support node). The network will allocate resources to the mobile base station based on the received low priority or / and machine type communication indicators. If a congestion occurs on the network side, the network will reject the low priority or / and the additional program of the machine type communication device.

According to Section 5.10.3 of the 3GPP document TS23.060, when the IP Multimedia Subsystem (IMS) service is initiated by the user, the mobile base station triggers a general attach on the cellular cell that provides the general service to the user. program. Therefore, a machine type communication/low priority device transmits a machine type communication/low priority indicator including a general additional category to the serving GPRS support node. For the serving GPRS support node, when the network side is blocked, the status of the emergency call cannot be recognized. The network therefore rejects the general add-on of the low priority/machine type communication device and treats the mobile base station as a low priority, even if the additional program is used to trigger an emergency call.

In addition, according to 3GPP Conference CT1-103879, the meeting proposes that when the characteristics of the machine type communication device are changed, for example, the low priority device is changed to the general device or the device type communication device is changed to the non-machine type communication device, and vice versa. . Next, the device performs a path area update/routing area update procedure to inform the network of new communication device features.

If the ongoing line-switched call and the network change communication device are characterized from a machine type communication device/low priority device to a non-machine communication device or vice versa. The mobile base station then triggers the separation and additional procedures again, and in the network operating mode I, the ongoing IP Multimedia Subsystem call and/or any line calls are interrupted.

Accordingly, the present invention provides a method for processing an emergency bearer service in a mobile base station of a wireless communication system.

The invention discloses a method for processing an emergency bearer service in an action base station of a wireless communication system. The method includes camping on a general cellular cell that provides a general service or a restricted service to an action base station; and prohibits transmitting an indicator when the mobile base station is attached to a network terminal due to the emergency bearer service And a network node; wherein the indicator is used to indicate that the mobile base station is a Machine Type Communication (MTC) device or a low priority device.

The present invention further discloses a method for processing an emergency bearer service in an action base station of a wireless communication system. The method includes a general cellular cell stationed in a mobile station providing a general service or a restricted service; and a message in the mobile base station attached to a network terminal due to the emergency bearer service An indicator is set to zero and the message is transmitted to a network; wherein the indicator is used to indicate that the mobile base station is a machine type communication device or a low priority device.

The invention further discloses a method for processing an emergency bearer service in an action base station of a wireless communication system. The method includes a general cellular cell stationed in a mobile station providing a general service or a restricted service; and an emergency attach is initiated when the mobile base station is attached to a network terminal due to the emergency bearer service program.

The invention further discloses a method for processing an emergency bearer service in an action base station of a wireless communication system. The method includes having a call; and disabling the call when the call is being resumed and a device configuration change is made.

The invention further discloses a method for processing an emergency bearer service in an action base station of a wireless communication system. The method includes having a call; and not changing the device configuration of the mobile base station while the call is being resumed.

Please refer to FIG. 1. FIG. 1 is a schematic diagram of a wireless communication system 10 according to an embodiment of the present invention. The wireless communication system 10 includes a network end 110 and a plurality of Mobile Stations (MSs) 120. A plurality of mobile base stations 120 are connected to the network end 110. The mobile base station 120 can be configured by the network to be a Machine Type Communication (MTC) device, a non-machine type communication device, or a low priority device.

The network end 110 can be a Global System for Mobile Communications (GSM), a Universal Mobile Telecommunication System (UMTS), a Long Term Evolution (LTE), and an advanced long-term evolution. LTE-Advanced or other 3GPP wireless technologies, such as Worldwide Interoperability for Microwave Access (WIMAX) or other technologies developed by the Institute of Electrical and Electronics Engineers (IEEE). It should be noted that the machine type communication device 120 can be a user equipment (UE) of a wireless communication system, such as a mobile phone, a computer system, or the like. The network end 110 can connect to one of the core networks 140 through a network end node 130. The core network 140 is used to comprehensively control the mobile base station 120 and bearer setup.

In the long term evolution system, the network node 130 can be a mobility management entity (hereinafter referred to as MME). The action management unit is responsible for the data packet transmission between the mobile device and the mobile device in a geographical area, including packet routing and transmission, action management (addition/separation and path area management), and conference management (packet data network connection) Establish and offline), logical link management, and authentication and charging. The Action Management Unit can be thought of as a local mobility anchor for interacting with other wireless access technologies such as GSM and UMTS. In a universal mobile communication system, the network node 130 can be a Serving GPRS Support Node (SGSN), which is used to handle data packet transmissions between mobile devices and a mobile device, including packet routing. And transport, action management (addition/separation and path area management), conference management (packet data agreement context establishment and offline), logical link management, and authorization and charging functions.

Referring to FIG. 2, FIG. 2 is a schematic diagram of a communication device 20 according to an embodiment of the present invention. The communication device 20 can be the client or core network of FIG. 1 and can include a processing device 200, such as a microprocessor or an Application-Specific Integrated Circuit (ASIC), a storage unit. 210 and a communication interface unit 220. The storage unit 210 can be any data storage device for storing code 214 for retrieval by the processing device 200. For example, the storage unit 210 includes a subscriber identity module (SIM), a read-only memory (ROM), a random access memory (RAM), and a CD-ROM. Read memory (CD-ROMs), magnetic tapes, hard disks, optical data storage devices, and the like, without being limited thereto. The communication interface unit 220 can be a wireless transceiver for exchanging wireless signals with the network according to the processing result of the processing device 200.

Please refer to FIG. 3, which is a flow chart of the process 30 according to an embodiment of the present invention. The process 30 is used in an action base station of the wireless communication system 10 for processing an emergency bearer service. The mobile base station is configured as a machine type communication device/a low priority device. The process 30 can be compiled into the code 214 and includes the following steps:

Step 300: Start.

Step 302: Entering a general cellular cell that provides one of the general services or a limited service of the mobile base station.

Step 304: When the mobile base station set as the machine type communication device/low priority device is attached to the network terminal 110 due to the emergency bearer service, it is prohibited to transmit a machine type communication indicator/low priority indicator to Network node 130 (eg, serving GPRS support node).

Step 306: End.

According to the process 30, the mobile base station set as the machine type communication device/low priority device is stationed in a general cellular cell that provides general service or limited service of the mobile base station. When the mobile base station set as the machine type communication device/low priority device is attached to the network terminal 110 due to the emergency bearer service, the mobile base station prohibits the transmission of the machine type communication indicator/low priority indicator to the network. Road node 130 (eg, serving GPRS support node). Preferably, the machine type communication indicator/low priority indicator is transmitted in an additional request message and is used to indicate that the mobile base station is set to the machine type communication device/low priority device. Therefore, when the network terminal 110 is in a congestion situation, the network node 130 does not regard the mobile base station as a low priority order because it does not receive the machine type communication indicator/low priority indicator in the additional request message. Further, the network terminal 110 receives an additional request from the mobile base station and performs an additional procedure for the emergency bearer service.

Please refer to FIG. 4, which is a flowchart of a process 40 according to an embodiment of the present invention. The process 40 is used in a mobile base station of the wireless communication system 10 for processing an emergency bearer service. The mobile base station is configured as a machine type communication device/a low priority device. The process 40 can be compiled into the code 214 and includes the following steps:

Step 400: Start.

Step 402: Entering a general cellular cell that provides general service or restricted service of the mobile base station.

Step 404: When the mobile base station set as the machine type communication device/low priority device is attached to the network terminal 110 due to the emergency bearer service, the machine type communication indicator/low priority order in the request message is added. The indicator is set to zero and an additional request message is sent to the network node 130 (e.g., the serving GPRS support node).

Step 406: End.

According to the process 40, the mobile base station set as the machine type communication device/low priority device is stationed in a general cellular cell that provides general service or limited service of the mobile base station. When the mobile base station set as the machine type communication device/low priority device is attached to the network terminal 110 due to the emergency bearer service, the mobile base station will attach the machine type communication indicator/low priority order in the request message. The indicator is set to zero and an additional request message is transmitted to the network node 130. The machine type communication indicator/low priority indicator is used to indicate that the mobile base station is set to the machine type communication device/low priority device. Therefore, when the network terminal 110 is in a congestion situation, the network node 130 receives the machine type communication indicator/low priority indicator in the additional request message, but due to the machine type communication indicator/low priority indicator It is set to zero, so the network node 130 does not regard the mobile base station as a low priority. Further, the network terminal 110 receives an additional request from the mobile base station and performs an additional procedure for the emergency bearer service.

Please refer to FIG. 5, which is a flowchart of a process 50 according to an embodiment of the present invention. The process 50 is used in a mobile base station of the wireless communication system 10 for processing an emergency bearer service. The mobile base station is configured as a machine type communication device/a low priority device. The process 50 can be compiled into the code 214 and includes the following steps:

Step 500: Start.

Step 502: Entering a general cellular cell that provides general service or restricted service of the mobile base station.

Step 504: When an action base station set as the machine type communication device/low priority device is attached to the network terminal 110 due to the emergency bearer service, an emergency add-on procedure is initiated.

Step 506: End.

According to the process 50, the mobile base station set as the machine type communication device/low priority device is stationed in a general cellular cell that provides the general service or limited service of the mobile base station. When the mobile base station set as the machine type communication device/low priority device is attached to the network terminal 110 due to the emergency bearer service, the mobile base station initiates an emergency add-on procedure. The mobile base station can initiate an emergency add-on procedure by setting an additional category as an emergency add-on. Next, the mobile base station transmits an additional category in the attach request message. Therefore, when the network terminal 110 is in a congestion situation, the network node 130 receives an additional category in the additional request message, and learns that the additional request is used for the emergency bearer service, and the network end 110 receives the additional request of the action base station, and executes Additional procedures for emergency bearer services.

Please refer to FIG. 6. FIG. 6 is a flowchart of a process 60 according to an embodiment of the present invention. The process 60 is used in an action base station of the wireless communication system 10 for processing an emergency bearer service. The mobile base station is configured as a machine type communication device/a low priority device. The process 60 can be compiled into the code 214 and includes the following steps:

Step 600: Start.

Step 602: Having a Packet Switch (PS) call/Circuited Switch (CS) call.

Step 604: When the packet switched call/line switched call is in progress and a device configuration change occurs, the release of the packet switched call/line switched call is prohibited.

Step 606: End.

According to the process 60, the mobile base station set as the machine type communication device/low priority device has a packet switched call/line switched call. At the same time, the mobile base station set as the machine type communication device/low priority device has a device configuration change. That is to say, the network terminal 110 changes the characteristics of the mobile base station from the mechanical type communication device to the non-mechanical type communication device, or from the low priority device to the general device. The packet switched call can be an IP Multimedia Subsystem (IMS) call. In this case, the mobile base station set as the machine type communication device/low priority device prohibits the release of the packet switched call/line switched call. In short, when the packet switched call/line-switched call is in progress and the device configuration of the mobile base station is changed, the mobile base station set to the machine type communication device/low priority device prohibits the release of the packet switched call/line exchange. call. In other words, the mobile base station will wait until the end of the packet switched call/line exchange call. As a result, the line-switched/packet-switched call is not interrupted.

The packet switched call/line switched call can be terminated by the user or the network side 110. After the end of the line switched call/packet exchange call, the mobile base station starts the separation procedure and the additional procedure again.

Please refer to FIG. 7. FIG. 7 is a flowchart of a process 70 according to an embodiment of the present invention. The process 70 is used in a mobile base station of the wireless communication system 10 for processing an emergency bearer service. The mobile base station is configured as a machine type communication device/a low priority device. The process 70 can be compiled into the code 214 and includes the following steps:

Step 700: Start.

Step 702: Have a packet switched call/line switched call.

Step 704: When the packet switched call/line switched call is in progress, it is prohibited to change the device configuration of the mobile base station.

Step 706: End.

According to the process 70, the mobile base station set as the machine type communication device/low priority device has a packet switched call/line switched call. The packet switched call can be an IP Multimedia Subsystem (IMS) call. At the same time, the network 110 attempts to change the device configuration of the mobile base station set to the machine type communication device/low priority device. In this case, when the packet switched call/line-switched call is in progress, the mobile base station set to the machine type communication device/low priority device prohibits the change of the device configuration of the mobile base station. In other words, the mobile device set to the machine type communication device/low priority device is not changed from the mechanical type communication device to the non-mechanical type communication device or from the low priority device to the general device.

Please note that the steps in the above mentioned device include suggested steps, which can be implemented by hardware, firmware or an electronic system. The firmware is recognized as a hardware device and computer instructions, and the data is a read-only software present on the hardware device. Examples of hardware may include analog, digital, and hybrid circuits, which are recognized as microcircuits, microchips, or germanium wafers. Examples of the electronic system may include a system on chip (SOC), a system in package (Sip), a computer on module (COM), and the communication device 20. The program code 214 and the processing result related to the processing program can be used in an action base station of the wireless communication system 10 that is set as a machine type communication device/low priority device for processing an emergency bearer service.

In summary, when the mobile base station set as the machine type communication device/low priority device is attached to the network terminal 110 due to the emergency bearer service, the transmission of the machine type communication indicator/low priority indicator is prohibited. In a nearby request message, or set the machine type communication indicator/low priority indicator to zero. In other words, when the mobile base station set as the machine type communication device/low priority device is attached to the network terminal 110 due to the emergency bearer service, the mobile base station prohibits the transmission of the machine type communication indicator/low priority order. Indicator, or set the machine type communication indicator/low priority indicator to zero. In other embodiments of the present invention, when the mobile base station set as the machine type communication device/low priority device is attached to the network terminal 110 due to the emergency bearer service, it is set to the machine type communication device/low priority. The mobile base station of the sequence device transmits an additional category set to "emergency add-on" in the additional request message to initiate the emergency add-on procedure.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

10. . . Wireless communication system

120. . . Mobile base station

110. . . Network side

130. . . Network node

140. . . Core network

200. . . Processing device

210. . . Storage unit

214. . . Code

220. . . Communication interface unit

30, 40, 50, 60, 70. . . Process

300, 302, 304, 306. . . step

400, 402, 404, 406. . . step

500, 502, 504, 506. . . step

600, 602, 604, 606. . . step

700, 702, 704, 706. . . step

FIG. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of a communication device according to an embodiment of the present invention.

FIG. 3 is a flow chart of a process of an embodiment of the present invention.

Figure 4 is a flow chart of the process of the embodiment of the present invention.

Figure 5 is a flow chart of the process of the embodiment of the present invention.

Figure 6 is a flow chart of the process of the embodiment of the present invention.

Figure 7 is a flow chart of the process of the embodiment of the present invention.

30. . . Process

300, 302, 304, 306. . . step

Claims (16)

A method for processing an emergency bearer service for use in a mobile station of a wireless communication system, the method comprising: setting the mobile base station to a machine type communication (Machine Type Communication, MTC) a device or a low priority device; stationed in a general cellular cell providing one of a general service or a restricted service of the mobile base station; and when the mobile base station is attached to a network due to the emergency bearer service, It is prohibited to transmit an indicator to a network node; wherein the indicator is used to indicate that the mobile base station is the machine type communication device or the low priority device. The method of claim 1, wherein disabling the transmitting of the indicator to the network node comprises disabling the transmitting of the indicator to the network node in an additional request message. The method of claim 1, wherein the network node is a Serving GPRS Supporting Node (SGSN). A method for processing an emergency bearer service for use in a mobile station of a wireless communication system, the method comprising: setting the mobile base station to a machine type communication (Machine Type Communication, MTC) a device or a low priority device; stationed in a general cellular cell providing one of a general service or a restricted service of the mobile base station; and when the mobile base station is attached to a network due to the emergency bearer service, Will one One of the indicators is set to zero and the message is transmitted to a network; wherein the indicator is used to indicate that the mobile base station is the machine type communication device or the low priority device. The method of claim 4, wherein the network node is a Serving GPRS Supporting Node (SGSN). The method of claim 1 or 4, further comprising: initiating an emergency add-on procedure when the mobile base station attaches to the network end due to the emergency bearer service. The method of claim 6, wherein initiating the emergency add-on includes setting an additional category as an emergency attach and transmitting the additional category in an additional request message. The method of claim 1 or 4, further comprising: having a call; and releasing the call when the call is in progress and a device configuration is changed. The method of claim 8, wherein the device configuration change comprises the mobile base station changing from the low priority device to a general device. The method of claim 8, wherein the device configuration change comprises changing the mobile base station from the mechanical type communication device to a non-mechanical communication device. The method of claim 8, further comprising performing a separate procedure and an additional procedure after the call ends. The method of claim 8, wherein the call is a Packet Switch (PS) call or a Circuit Switch (CS) call. The method of claim 1 or 4, further comprising: Have a call; and do not change the device configuration of the mobile base station while the call is in progress. The method of claim 13, wherein the device configuration that does not change the mobile base station includes not changing the mobile base station from the low priority device to a general device. The method of claim 13, wherein the device configuration that does not change the mobile base station includes not changing the mobile base station from the mechanical type communication device to a non-mechanical communication device. The method of claim 13, wherein the call is a Packet Switch (PS) call or a Circuit Switch (CS) call.